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1. WO1996002850 - APPARATUS FOR SENSING MAGNETIC FIELDS USING A COUPLED FILM MAGNETORESISTIVE TRANSDUCER

Publication Number WO/1996/002850
Publication Date 01.02.1996
International Application No. PCT/US1995/009085
International Filing Date 20.07.1995
Chapter 2 Demand Filed 02.02.1996
IPC
G01R 33/09 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
02Measuring direction or magnitude of magnetic fields or magnetic flux
06using galvano-magnetic devices
09Magneto-resistive devices
CPC
B82Y 25/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
25Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
G01R 33/093
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
02Measuring direction or magnitude of magnetic fields or magnetic flux
06using galvano-magnetic devices, e.g. Hall effect devices; using magneto-resistive devices
09Magnetoresistive devices
093using multilayer structures, e.g. giant magnetoresistance sensors
Applicants
  • HONEYWELL INC. [US/US]; Honeywell Plaza Minneapolis, MN 55408, US
Inventors
  • PANT, Bharat, B.; US
Agents
  • BRUNS, Gregory, A.; Honeywell Inc. Honeywell Plaza - MN12-8251 Minneapolis, MN 55408, US
Priority Data
08/277,85620.07.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS FOR SENSING MAGNETIC FIELDS USING A COUPLED FILM MAGNETORESISTIVE TRANSDUCER
(FR) APPAREIL DE DETECTION DE CHAMPS MAGNETIQUES COMPRENANT UN TRANSDUCTEUR MAGNETORESISTIF A COUCHES COUPLEES
Abstract
(EN)
A first magnetically coupled film sensing element and a second magnetically coupled film sensing element are arranged to change resistance in response to a magnetic field when biased by a current through the elements. A current carrying conductor spaced from the elements sets the magnetization in the elements. A transfer function of the elements is adjusted by varying the current through the elements or the current through the conductor.
(FR)
Un premier élément de détection, à couches magnétiquement couplées, et un second élément de détection, également à couches magnétiquement couplées, sont disposés de façon à faire varier la résistance en réponse à un champ magnétique lorsqu'ils sont traversés par un courant de polarisation. Un conducteur véhiculant un courant, placé à une certaine distance desdits éléments, leur confère une magnétisation. Une fonction de transfert desdits éléments est réglée par variation du courant qui les traverse ou du courant qui traverse ledit conducteur.
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